Architectural and space-planning solutions

 The space-planning and architectural and construction solutions of the BKTP are dictated by local conditions and are made according to the standard project "Complex two-transformer substation in a reinforced concrete building", Album II, 2BKTP.IZH.4.1-20.006AR. BKTP - a structure with a basement and above-ground part, rectangular in plan, with dimensions in the extreme axes of 4,64 x 5,24 m, a height from the planning mark of the earth to the eaves of 3,32 m, the planning mark of the earth - minus 0,800 m. For relative mark 0,000 is the mark of the finished floor of the switchgear compartment. The basement part of the BKTP consists of two prefabricated reinforced concrete underground modules - trough-shaped pallets, compartments with a height (depth) of 1,30 m, partially buried. The above-ground part of the BKTP consists of two prefabricated reinforced concrete box-shaped modules with an internal height of the compartment at a maximum point of 2,52 m, which are installed on pallet modules. The thickness of the ceiling, cover, walls and partitions of the modules is 80 mm. Cables and oil receivers are located in the basement. Power transformers and switchgears (low voltage and high voltage) are located in the above-ground part of the BKTP. The floors are non-dusting, covered with water-dispersed acrylic paint "Akrimmetal". Filling of openings - according to the specifications of the standard project 2BKTP.IZH.4.1-20.006AR.
Facades - painting with acrylic paints.

 Structural and space-planning solutions

 Architectural and construction decisions were made according to the standard project tied to local conditions “Complete 2-transformer substation in a reinforced concrete building. Album II 2BKTP. IZH.4.1-20.006AR". Building responsibility level – II. The complete transformer substation 2BKTP consists of four prefabricated reinforced concrete elements: two underground pallet modules and two above-ground modules installed one on top of the other. The underground module-pallet is a trough-shaped prefabricated reinforced concrete element. The above-ground module is a one-piece reinforced concrete box-shaped element. The thickness of the module structures is 80 mm, concrete class B22,5, W6, F300, class AIII reinforcement. The relative mark of 0,000 corresponds to the absolute mark of 17,600. The foundation was designed in accordance with engineering and geological surveys carried out at the construction site. As a foundation, a monolithic reinforced concrete slab of B15, W6, F75 class concrete with a thickness of 300 mm was designed, on sand preparation with a thickness of 100 mm. At the base of the foundations there is sandy light brown, layered, plastic sandy loam. Expected draft 2,7 mm. The calculation of the foundation slab was carried out according to the program "Foundation 11.2". The maximum position of the groundwater level is expected during the period of intense precipitation near the daytime surface of the earth. Ground waters are weakly aggressive in terms of pH and moderately aggressive in terms of the content of aggressive carbon dioxide in relation to concrete of normal permeability. In order to protect the concrete of underground structures from corrosion, it is planned to use concrete of increased water resistance, the device for enhanced waterproofing of surfaces in contact with the ground. The normative depth of freezing of bulk soils is taken as 1,45 m. The working draft adopted the depth of foundations below the freezing depth of soils. 6.2.4. Engineering equipment, engineering networks, engineering measures: Design documentation for the power supply of the designed 2-transformer block complete transformer substation (2BKTP-2x400) No. 621 was made on the basis of the design specification, specifications. The project documentation provides for: 1. At the existing transformer substation - replacement of the existing circuit breaker VNR 10/400 with a circuit breaker VNR 10/630. 2. At the existing TP No. 219 - installation of an additional switch VNR 10/630. 3. Connection of the designed 2BKTP-2x400 No. 621 to the existing transformer substation No. 286 through the designed switch VNR10/630 by cable line ASB2l-10 3x120 mm.kv. Gasket - in the ground. The length of the route L = 0,400 km. 4. Connection of the designed 2BKTP-2x400 No. 621 to the existing transformer substation No. 219 - through the designed switch VNR10/630 by cable line ASB2l-10 3x120 mm.kv. Gasket - in the ground. The length of the route L = 0,300 km. Design documentation for the construction of the projected 2-transformer block complete transformer substation (2BKTP-2x400) No. 621 was completed on the basis of the design specification and specifications. The project documentation provides for: construction of a 2-transformer substation with a capacity of 2 x 400 kVA, with a switchgear on the 6 kV side (RU-6 kV). In RU-6 kV, a single sectioned (into two sections using a disconnector) busbar system is adopted, to which two inputs, two power transformers with a capacity of 400 kVA each and two outgoing lines are connected. Cell type KSO-386. On the 0,4 kV side, a single-section busbar system is adopted. RUNN is provided from standard blocks with 0,4 kV outgoing lines on fuse switches and automatic switches. Voltmeters with switches are designed to measure voltage on RUNN sections. To measure the current of each phase, ammeters are installed at the LV input.

Engineering equipment, engineering networks, engineering activities

Design documentation for the power supply of the projected The 2-transformer block complete transformer substation (2BKTP-2x400) was made on the basis of the design specification, technical conditions and the inspection report. Design documentation for the construction of the projected The 2-transformer block complete transformer substation (2BKTP-2x400) was made on the basis of the terms of reference for the design and specifications. The project documentation provides for: construction of a 2-transformer substation with a capacity of 2 x 400 kVA, with switchgear on the 6 kV side (RU-6 kV). In RU-6 kV, a single sectioned (into two sections using a disconnector) busbar system is adopted, to which two inputs are connected, two power transformers with a capacity of 400 kVA and two outgoing lines. Cell type KSO-386. On the 0,4 kV side, a single-section busbar system is adopted. RUNN is provided from standard blocks with 0,4 kV outgoing lines on fuse switches and automatic switches. Voltmeters with switches are designed to measure voltage on RUNN sections. To measure the current of each phase, ammeters are installed at the LV input. Electricity metering is designed in the RUNN section. Power supply reliability category – II. The substation is designed with working, emergency and repair lighting, a burglar alarm against the intrusion of unauthorized persons.